Visitation (Surrey) suggests that Nicholas's wife was Allice, dau of Lord Martin of Devon. However, Lord Martin appears not to have had a daughter Allice. Provisionally, we follow Vivian in identifying her as ...

m. Amicia Peverell (dau of Hugh Peverell, sister/heir of Sir John of Ermington)

The following comes from VCH (Berkshire, vol 3, 'Parishes: Purley') & VCH (Surrey, vol 3, 'Parishes: Nutfield'). The former shows that Nicholas obtained Great Purley from his father Nicholas who obtained it from his father Nicholas who obtained it from his father Nicholas who obtained it from his stepson Thomas Huscarle.